Not to mention the acceleration needed to achieve orbital velocity with a catapult. Seems like insanely high forces on the payload. I’d love to see how they solve this.
Check your own numbers at: http://www.calctool.org/CALC/phys/newtonian/centrifugal
That's reasonable _for humans_. No one's going to launch a human by this thing, though, I hope.
Hyperloop, magnets, battery arrays, solar, boring company, etc sounds pretty cool.